Вопрос
The second level of compaction of the DNA molecule in the eukaryotic chromosome: Bblóepute oAMH OTBer: a. nucleosome b. metaphase chromosome c. Solenoid d. interphase chromosome
Решения
4
(291 Голоса)
Диана
профессионал · Репетитор 6 лет
Ответ
c. Solenoid
Объяснение
## Step 1The problem is asking for the second level of compaction of the DNA molecule in the eukaryotic chromosome. The DNA molecule in eukaryotic chromosomes undergoes several levels of compaction to fit within the confines of the cell nucleus. ## Step 2The first level of compaction is the nucleosome, which is the basic unit of DNA packaging in eukaryotes. It consists of a segment of DNA wrapped around a core of histone proteins.## Step 3The second level of compaction is the solenoid, where the nucleosomes coil and stack upon each other to form a more compact structure.## Step 4The third level of compaction is the metaphase chromosome, which is the most condensed form of the chromosome, observed during cell division.## Step 5The fourth level of compaction is the interphase chromosome, which is the form of the chromosome during the cell's normal functioning, not during division.## Step 6Given these levels, the correct answer to the question is the solenoid, which is the second level of compaction.